前言软磁盘机是一种采用软性塑料磁载体的磁盘存储器,其基本工作原理与硬盘相同。它是近年来发展最快的外部设备之一。不仅产量逐年增加,而且性能迅速提高,应用也愈来愈广。它可用作:源数据输入装置,计算机的输入输出设备;中、大型机及其外围设备的文件存储器;小、微型机的外存储器;以及智能终端机的辅助存贮器等。自美国IBM公司研制3740数据输入系统(即数据采集装置)采用软磁盘作为存储器以来,由于它具有价格低,小型化、便于保存、易于携带和邮寄、介质可以反复使用,互换性好、能随机存取信息;与纸带、卡片相比又具有速度快、可靠性高、容量大、寿命长等优点,因此在小、微型机和事务处理机中选择作为 Preface The floppy disk drive is a kind of magnetic disk storage with soft plastic magnetic carrier, and its basic working principle is the same as that of the hard disk. It is one of the fastest growing external devices in recent years. Not only the output increases year by year, but also the performance is rapidly improved, and the applications are also getting wider and wider. It can be used as: a source data input device, a computer’s input and output devices; a file memory of medium and mainframe computers and their peripherals; an external memory of small and micro computers; and an auxiliary memory of an intelligent terminal computer. Since the United States IBM company developed 3740 data input system (ie, data acquisition device) uses a floppy disk as the memory, because of its low price, small size, easy to save, easy to carry and mail, the medium can be used repeatedly, good interchangeability, can be random Access to information; compared with paper tapes, cards and has the advantages of fast speed, high reliability, large capacity, long life and other advantages, so in the small, micro-processor and transaction processor as a